Wow, you have really been through a lot. You must be very strong to still be functioning at all. Be proud of yourself. I don't have much advice except to try to make as much downtime to yourself as possible over the holiday period. Try to find activities that relax you and even bring you joy. I read and/or go swimming (I live near the beach), play guitar and take photos when I have some downtime. It really helps. Hang in there!